diff --git a/Dockerfile b/Dockerfile
index db4517c..0953068 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,6 +4,8 @@ ARG ISSO_VER=0.12.2
 
 ENV GID=1000 UID=1000
 
+COPY run.sh /usr/local/bin/run.sh
+
 RUN apk -U upgrade \
  && apk add -t build-dependencies \
     python3-dev \
@@ -18,16 +20,13 @@ RUN apk -U upgrade \
     tini \
  && pip3 install --no-cache "isso==${ISSO_VER}" \
  && apk del build-dependencies \
+ && chmod +x /usr/local/bin/run.sh \
  && rm -rf /tmp/* /var/cache/apk/*
 
-COPY run.sh /usr/local/bin/run.sh
-
-RUN chmod +x /usr/local/bin/run.sh
-
 EXPOSE 8080
 
 VOLUME /db /config
 
 LABEL maintainer="Wonderfall <wonderfall@targaryen.house>"
 
-CMD ["run.sh"]
+CMD ["run.sh"]
\ No newline at end of file
diff --git a/run.sh b/run.sh
index 7b6416a..c06a36e 100644
--- a/run.sh
+++ b/run.sh
@@ -1,3 +1,9 @@
 #!/bin/sh
 chown -R $UID:$GID /db /config
-exec su-exec $UID:$GID /sbin/tini -- isso -c /config/isso.conf run
+CONFIGFILE=/config/isso.conf
+if test -f "$CONFIGFILE"; then
+    exec su-exec $UID:$GID /sbin/tini -- isso -c $CONFIGFILE run
+else
+    echo "The configuration file $CONFIGFILE was not found."
+    exit
+fi